The Edgewater Drive project is part of Koch’s $25 million capital improvement plan, which was approved in 2011. Of the $25 million, $5 million was earmarked for sea-wall repairs.

Walker said getting construction permits from the state delayed the start of the work.

In the spring, the city spent some capital money to make emergency repairs to the Edgewater Drive wall following several harsh storms, Walker said. This next phase of work, expected to be completed no later than Nov. 5, aims to strengthen the most worn-down sections of the sea wall, which is made of granite blocks and dates to 1937.

Beach erosion has taken a toll on much the city’s seven miles of sea wall, leaving coastal neighborhoods more susceptible to coastal flooding. But Ward 1 City Councilor Margaret Laforest said Edgewater Drive is the “worst of the worst.”

She said the low-lying neighborhood is exposed to the most severe wave action in the city.

Repairs proposed for the Edgewater Drive wall include:

Adding rip-rap and making backfill repairs from Thomas Street to Bell Street.

Adding rip-rap up to the top of the granite wall from Bell Street to Darrow Street.

Resetting the pre-cast concrete wall and replacing the walkway from Charles Street to Darrow Street.

Repairing the concrete sea-wall toe, or bottom, from Darrow Street to Macy Street.

Add rip-rap from Darrow Street to Macy Street.

Walker said the mayor wants to use capital funds to fix some of the city’s other deteriorating sea walls this summer, including the wall at Adams Shore.

Capital funding, which is borrowed money, is also paying for the city’s ongoing effort to replace every staircase at the city-owned sea walls. There were concerns about the condition of steps and railings.

“We are really tackling some safety hazards and providing better access to the public,” Laforest said.